CN108168156B - Heat storage method of water heating device - Google Patents
Heat storage method of water heating device Download PDFInfo
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- CN108168156B CN108168156B CN201611115788.6A CN201611115788A CN108168156B CN 108168156 B CN108168156 B CN 108168156B CN 201611115788 A CN201611115788 A CN 201611115788A CN 108168156 B CN108168156 B CN 108168156B
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- hot water
- water
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- heat storage
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
Abstract
A heat storage method of a water heating device (taking an air-conditioning water heater as an example) comprises the following steps: keeping micropore water injection: leading hot water into a heat storage container from a micropore water injection section of a hot water input pipe to keep horizontal water injection; guiding water injection: a guide cover covering the micropore water injection section of the hot water input pipe forms a higher temperature hot water flow and a lower temperature hot water flow; and maintaining the micropore water outlet: the higher temperature hot water flows out through the micropore water outlet section of the hot water output pipe to keep horizontal water outlet. Wherein the hot water input pipe is connected to a hot water circulation loop, and the hot water output pipe is connected to at least one using end; the micropore water outlet section of the hot water output pipe is positioned above the micropore water injection section of the hot water input pipe. Therefore, the injected hot water can be kept stable and slowed down, hot water disturbance is avoided, the hot water storage temperature efficiency is improved, the output temperature of the higher-temperature hot water flow (target hot water) is increased, and the trouble that the lower-temperature hot water flow (or the hot water with insufficient temperature) is output and used is effectively prevented.
Description
Technical Field
The invention relates to a heat storage method of a hot water making device capable of improving the hot water storage temperature efficiency, which can effectively prevent lower-temperature hot water flow (or insufficient hot water temperature) from being output for use.
Background
Referring to fig. 1, a conventional air-conditioning water heater 1 is mainly configured with a compressor 11, an outdoor heat exchanger 12 (a condenser), a fan motor 13, a dry filter 14, and a refrigerant flow controller 15, etc. outdoors; and an indoor heat exchanger 16, which is an evaporator, and a fan motor 17 are disposed indoors. Through the combination of the above components, the air conditioning section A0 is supplied with cold air, and hot water is produced in a hot water heat storage container 18; however, the air-conditioning water heater 1 has the following defects in use:
1. the cold water fed from the cold water inlet pipe 181 of the hot water storage container 18 and the hot water produced from the hot water storage container 18 are in an automatic mixing state in the same chamber (container), so that the cold water is easily mixed with the hot water, and the hot water output pipe 182 is often in a state of insufficient supply water temperature.
2. The hot water outlet pipe 182 is mostly disposed at the top end of the hot water heat storage container 18, which not only affects the overall appearance, but also is very inconvenient on the distribution pipeline.
Disclosure of Invention
In view of the above, one of the main objectives of the present invention is to provide a heat storage method for a water heating device, which can make the interior of a heat storage container naturally layered horizontally according to the water temperature and avoid the disturbance of the vertical fluid, so as to improve the temperature efficiency of hot water storage, and effectively prevent the automatic mixing of cold water (low temperature hot water) and hot water, thereby avoiding the hot water temperature from being insufficient and being unusable.
To this end, the present invention provides a heat storage method for a water heating device, such as an air-conditioning water heater, wherein the air-conditioning water heater is connected to a water heating circulation loop, and the water heating circulation loop is connected to a heat storage container structure, the heat storage container structure at least comprises: a heat storage container, a hot water output pipe connected with the hot water circulation loop, a hot water input pipe, and a guiding cover. The heat storage method of the water heating device comprises the following steps: keeping micropore water injection: hot water is led into the heat storage container from the micropore water injection section of the hot water input pipe, and horizontal water injection is kept. Guiding water injection: the guide cover covering the micropore water injection section of the hot water input pipe guides the injected hot water and divides the hot water into: a higher temperature hot water stream and a lower temperature hot water stream. Keeping the micro-pore water outlet: the hot water with higher temperature flows out of the heat storage container through a micropore water outlet section of the hot water output pipe and keeps horizontal water outlet. Wherein the hot water output pipe is connected to at least one using end; the micropore water outlet section of the hot water output pipe is positioned above the micropore water injection section of the hot water input pipe; the open end of the guide cover faces the micropore water outlet section of the hot water output pipe.
The heat storage method of the hot water making device provided by the invention has the advantages and beneficial effects that: the heat storage method of the water heating device can effectively prevent the trouble that lower-temperature hot water flow (or hot water temperature is insufficient) is output and used, and achieve the efficiency of improving the hot water storage temperature, thereby having practical and progressive benefits.
Drawings
FIG. 1 is a system diagram of an existing air-conditioning water heater;
FIG. 2 is a flow chart of the heat storage method of the hot water producing device of the present invention;
FIG. 3 is a flowchart of one embodiment of step S30 in FIG. 2;
FIG. 3A is a flowchart of another embodiment of step S30 in FIG. 2;
FIG. 4 is a flowchart of one embodiment of step S40 in FIG. 2;
FIG. 4A is a flowchart of another embodiment of step S40 in FIG. 2;
FIG. 5 is a system diagram of a heat storage container structure for use with the heat storage method of the hot water generator of the present invention;
FIG. 6 is a cross-sectional view of the first embodiment of the heat storage container structure of FIG. 5;
FIG. 7 is a cross-sectional view of a second embodiment of the heat storage container structure of FIG. 4A;
FIG. 8 is a cross-sectional view of a third embodiment of the heat storage container configuration of FIG. 3A;
FIG. 9 is a flowchart of a temperature control process S50 of a heat storage method of a hot water heating device according to the present invention;
FIG. 10A is a flow chart of one embodiment of step X of FIG. 9;
FIG. 10B is a flowchart of yet another embodiment of step X in FIG. 9; and
fig. 11 is a flowchart of a temperature control process S60 of the heat storage method of the hot water heating device according to the present invention.
Description of reference numerals:
Hot water heat storage container 18 cold water input pipe 181
Hot water output pipe 182 air-conditioning and water-heating machine 2
Open end 272,282 orifice plate 29
Perforated 291 air-conditioning section a0
Hot water input pipe L1 of heating water circulation loop L
Outer pipe segment L11 water injection hole L12
Return pipe L2 top section L21
Drain opening L22 cold water supply tube L23
Hot water outlet pipe L3 top section L31
Water outlet L32 controller M
Temperature sensors T, T1, T2, T3
Higher temperature hot water flow A and lower temperature hot water flow B
Steps S10, S20, S30 to S32, S40 to S42, S50 to S52, S60 to S65, X, S30 ', S40 ', X '
Detailed Description
Referring to fig. 2, a detailed description will be given of a heat storage method of a hot water producing device according to the present invention, which includes steps of filling water into micro holes (step S10), guiding the water filling (step S20), keeping water out of the micro holes (step S30), and keeping water out of the micro holes (step S40), referring to fig. 5 and 6, a system diagram of the heat storage method of the hot water producing device according to the present invention applied to a heat source system 2 and a heat storage container 26 is shown, in which the heat source system 2 is exemplified by an air-conditioning hot water machine and is connected to a hot water producing circulation circuit L and a controller m, a hot water inlet pipe L1 connected to the hot water producing circulation circuit L, a return pipe L2, a hot water outlet pipe L3, a guide hood 27 and a temperature sensing set t are disposed in the heat storage container 26, wherein the hot water inlet is defined as a direction from the heat source system 2 toward the heat storage container 26, the heat storage container 2 is defined as a direction from the heat source system 2 toward the heat storage container L2 6, and the heat storage container 22 is defined as a direction from the heat storage container 26 toward the heat storage container 387.
Therefore, in the step S10 of the heat storage method of the hot water producing apparatus of the present invention, the hot water is introduced into the heat storage container 26 through the microporous water injection section of the hot water input tube L1 and the water is horizontally injected, in the step S20, the injected hot water is guided by the guide cover 27 covering the microporous water injection section of the hot water input tube L1 and divided into the higher temperature hot water flow A and the lower temperature hot water flow B, in the step S30, referring to FIG. 3, step S32 is included, the higher temperature hot water flow A is outputted from the heat storage container 26 through the microporous water outlet section of the hot water output tube L3, referring to FIG. 4, step S40 is included, the lower temperature hot water flow B is passed through the microporous water discharge section of the return tube L2, thereby, the water is injected and discharged through the micropores, the injected and discharged water are automatically layered according to the temperature, and the water is naturally distributed, and the guide cover 27 guides the water flow to stably flow.
To facilitate understanding of the heat storage method of the hot water generating device of the present invention, the heat source system 2 is specifically described as follows, one end of the hot water input pipe L1 extends to the inside of the heat storage container 26 to form an outer pipe section L, the outer pipe section L011 has a plurality of water injection holes L spaced apart to form the above-mentioned micro-hole water injection section, the hot water output pipe L is smaller in diameter than the outer pipe section L, the hot water output pipe L43 is smaller in diameter than the outer pipe section L511, the hot water output pipe L3 is inserted into the outer pipe section L, the end of the outer pipe section L is closed, not only the hot water input pipe L and the hot water output pipe L form a double pipe structure with sufficient bonding strength, but also the hot water is controlled to be slowly introduced into the guide cover 27 through the water injection holes L, the hot water injection holes 36 of the outer pipe section 8511 can slow down the hot water injection flow rate, and the hot water injection can be prevented from being disturbed in the vertical direction of the hot water storage container 26 and the hot water can be kept at a higher temperature than the heat storage container (e.g. a) and the heat storage container can be kept in a horizontal direction.
The hot water outlet pipe L3 supplies hot water to the outside, the hot water outlet pipe L3 defines a top section L131 above the end of the outer pipe section L011, the end of the top section L31 can be closed, and the pipe body of the top section L31 has a plurality of water outlet holes L32 to form the micro-porous water outlet section, the end of the top section L31 which is closed can make the higher temperature hot water flow a be slowly and horizontally introduced into the hot water outlet pipe L3 only through the water outlet hole L32, the flow rate of the higher temperature hot water flow a can be slowed down through the water outlet hole L32 of the top section L31, and the higher temperature hot water flow a can be horizontally output, so that the water stored in the heat storage container 26 is prevented from vertical fluid disturbance.
The guiding hood 27 is tapered, one end of the guiding hood 27 is fixedly arranged on the outer tube section L11 of the hot water input pipe L1, the other end of the guiding hood 27 forms an open end 271 towards the end of the outer tube section L11 of the hot water input pipe L01. the guiding hood 27 can form a superposed section outside the outer tube section L11, the superposed section is usually positioned below the top section L31 of the hot water output pipe L3, and the microporous water injection section of the outer tube section L11 is positioned at the superposed section covered with the guiding hood 27. the hot water introduced into the guiding hood 27 from the water injection hole L12 of the outer tube section L11 is gradually rectified in the guiding hood 27, and forms a hot water flow A with higher temperature flowing towards the water outlet hole L32 and a hot water flow B with lower temperature flowing out from the open end 271 of the guiding hood 27 and sinks downwards.
The return pipe L2 extends from the bottom end of the heat storage container 26 and is connected to the heating water circulation loop L, the pipe body of the return pipe L2 located inside the heat storage container 26 is defined as a top section L21 having a plurality of drain holes L22 to form the micro-hole drain section, the end of the top section L21 is closed, the return pipe L2 is provided with a hot water pump 261 and a cold water supply pipe L23 connected to the heating water circulation loop L, and the cold water supply pipe L23 is provided with a control valve 262 to control the input of the cold water.
The flow velocity of hot water injection can be slowed down through the water injection hole L12 of the outer pipe section L11, the hot water can be injected horizontally, the vertical fluid disturbance in the heat storage container 26 during water injection is avoided, the fluid in the heat storage container 26 can be kept layered according to different temperatures, the guide cover 27 has a rectification effect on the water injection, the efficiency of layering according to the temperature in the heat storage container 26 is improved, as the temperature of the hot water injected through the water injection hole L12 is increased, the hot water flow A with higher temperature is stacked up one by one and output through the water outlet hole L32, the hot water flow B with higher temperature is gradually settled, and the hot water with insufficient temperature is discharged through the water discharge hole L22 due to the limited volume of the heat storage container 26.
The highest point in the heat storage container 26 is the highest point of the temperature level because the higher the temperature of the hot water in the heat storage container 26, therefore, the size of the heat storage container 26 can be designed according to the requirement, and the height scale is "metric" (meter) or is increased by the scale grade, wherein, preferably, the water injection hole L12 of the outer pipe section L11 is arranged at the height h1, which does not exceed the vertical height of 1/3 of the heat storage container 26, the water outlet hole L32 of the hot water output pipe L3 is arranged at the height h2, which does not exceed the vertical height of 4/5 of the heat storage container 26, and the top section L21 of the return pipe L2 is arranged at the height h3, which is in the range of 5-30 cm (millimeter).
Referring to fig. 3A and 8, an orifice plate 29 is disposed above the return pipe L2 and the hot water outlet pipe L3 in parallel, the orifice plate 29 having a plurality of perforations 291 for allowing the hot water flow a of higher temperature to pass through, therefore, in step S30', step S32 further comprises step S31 of directing the hot water flow a to flow out, in step S31, passing the hot water flow a of higher temperature through the plurality of perforations 291 of the orifice plate 29 by passing the hot water flow a through the orifice plate 29 disposed horizontally in the heat storage container 26 and located between the microporous water injection section of the hot water inlet pipe L1 and the microporous water outlet section of the hot water outlet pipe L3, and the perforations 291 can also slow down the flow rate of the hot water flow a of higher temperature so as to avoid disturbance in advance before the hot water is output, thereby maintaining a stable slow flow.
Referring to fig. 4A and 7, a guiding hood 28 is disposed corresponding to the return pipe L2, and is also tapered to guide the water flow, one end of the guiding hood 28 is fixed to the return pipe L2, and the other end of the guiding hood 28 forms an opening 281 toward the end of the top portion L21 of the return pipe L2. the guiding hood 28 can form a overlapped section for the top portion L21 of the return pipe L2. therefore, in step S40', step 42 further includes step 41 of guiding the lower temperature hot water flow B to flow out, in step 41, the guiding hood 28 covering the microporous water discharge section of the return pipe L2 in the heat storage container 26 is used to guide the lower temperature hot water flow B. similarly, the design of the water discharge hole L22 makes the water flow in the top portion L21 of the return pipe L2 to discharge water at the same level and slow speed, and in the process of flowing the low temperature hot water/cold water, the guiding hood 282 can stably discharge water.
With continuing reference to fig. 5 and 6, the temperature sensing set T is disposed inside the heat storage container 26 to detect the temperature of the water inside the heat storage container 26, the temperature sensing set T includes at least one temperature sensor disposed near the end of the return pipe L21 or the end of the outer pipe L11, and the controller M can control the heating of the hot water pump 261 by obtaining the temperature measured by the temperature sensor, the temperature sensing set T includes three temperature sensors T1, T2, T3 disposed near the end of the outer pipe L11, near the end of the hot water output pipe L3, and near the end of the return pipe L21, so that the three temperature sensors T1, T2, T3 can obtain the water temperatures at different stages.
Referring to fig. 9, in an embodiment of the present invention, the controller M can obtain the temperatures of the temperature sensors T1-T3, and in the flowchart of fig. 2, a temperature control process S50 can include a temperature control step X disposed between steps S20 and S30, after step S30, or after step S40. As shown in fig. 10A, the temperature control step X includes: step S51, determining whether the obtained temperature reaches a predetermined temperature; if the temperature is not the preset temperature, the process proceeds to step S52, where in step 52, the hot water pump 261 is controlled to heat or the injection of cold water is prompted, so as to change the water injection temperature in step S10; if the preset temperature is reached, heating is not carried out. In a temperature control step X' of fig. 10B, step S51 is included; and if the preset temperature is not reached, the step S52 is executed, and if the preset temperature is reached, the step S10 is executed again.
In addition, referring to a temperature control process S60 of fig. 11, in another embodiment of the present invention, the temperature sensing set T also includes three temperature sensors T1, T2 and T3, and the controller M controls the heating or turns off the heating of the hot water heat exchanger 22 by obtaining at least a single temperature of the temperature sensor T3, or a combined temperature of the temperature sensors T1 and T3, or all temperatures of the temperature sensors T1, T2 and T3, and by individually or calculating the results of T1, T2 and T3. The temperature control process S60 includes steps S61, S62, and S63 to obtain the temperature after steps S20, S30, and S40, respectively; and in step S64, feeding back the obtained temperatures to the controller M, and proceeding to step S64, calculating the obtained temperatures individually or in combination, and determining whether a preset temperature is reached; if not, the process proceeds to step S65: the water injection temperature in step S10 is changed by controlling the heating of the hot water pump 261 or by prompting the injection of cold water; if the preset temperature is reached, the temperature control process S60 can proceed to the next step, which is not limited to directly returning to step S10.
Therefore, the heat storage method of the water heating device of the invention can keep horizontal water injection through the micropore water injection, avoid vertical fluid disturbance, ensure that the water injection can be automatically layered according to the temperature, and form natural diversion by guiding the flow through the guide cover.
In addition, compared with the existing air-conditioning water heater, the dual-tube structure of the present invention has the effects of low space occupancy rate and relatively stable structural strength, and the top section L31 of the hot water output tube L3 is designed with a sufficient length to ensure that the temperature of the hot water entering the water outlet L32 of the hot water output tube L3 is high enough to ensure that the hot water can stably flow upward and enter the hot water output tube L3, so as to keep the hot water in the hot water output tube L3 at a certain high temperature, and prevent the trouble of outputting the hot water flow B with a lower temperature (the hot water with a lower temperature).
In conclusion, the invention can effectively solve the defects of the existing air-conditioning water heater, effectively prevent the trouble that the lower-temperature hot water flow (or the hot water temperature is insufficient) is output and used, and achieve the efficiency of improving the hot water storage temperature, thereby having practical and progressive benefits.
Claims (15)
1. A heat storage method of a water heating device comprises the following steps:
keeping micropore water injection: leading hot water into a heat storage container from a micropore water injection section of a hot water input pipe, and keeping horizontal water injection;
guiding water injection: guiding the injected hot water by a guide cover which is arranged in the heat storage container and covers the micropore water injection section of the hot water input pipe, and forming a higher-temperature hot water flow and a lower-temperature hot water flow; and
keeping the micro-pore water outlet: the higher temperature hot water flows out of the heat storage container through the micropore water outlet section of a hot water output pipe and keeps horizontal water outlet;
wherein the hot water input pipe is connected to a hot water circulation loop, and the hot water output pipe is connected to at least one using end; the micropore water outlet section of the hot water output pipe is positioned above the micropore water injection section of the hot water input pipe; the open end of the guide cover faces the micropore water outlet section of the hot water output pipe; the hot water input pipe and the hot water output pipe are of a double-pipe structure and are vertically arranged along the heat storage container.
2. The heat storage method of a water heating apparatus as claimed in claim 1, wherein the water injection holes of the hot water input pipe are arranged at intervals.
3. The method of claim 1, wherein the outlet holes of the hot water outlet pipe are spaced apart from each other.
4. The heat storage method of a water heating apparatus as claimed in claim 1, wherein the microporous water injection section of the hot water input pipe is not higher than 1/3 of the heat storage container.
5. The heat storage method for a water heating device as claimed in claim 1, wherein the outlet section of the hot water outlet pipe is not higher than 4/5 in the heat storage container.
6. The method of storing heat in a hot water producing device as claimed in claim 1, further comprising:
and (3) keeping micro-pore drainage: draining the lower temperature hot water flow through a microporous draining section of a reflux pipe to maintain horizontal drainage;
wherein the return pipe is connected to the hot water circulation loop.
7. The method of claim 6, wherein said return pipe drainage holes are spaced apart from each other.
8. The heat storage method of a water heating apparatus according to claim 6, further comprising:
guiding the water to drain from the lower-temperature hot water flow: the guiding cover which is arranged in the heat storage container and covers the micropore water discharge section of the return pipe guides the low-temperature hot water flow.
9. The heat storage method of a water heating apparatus according to claim 1 or 8, further comprising:
guiding higher temperature hot water to flow out: the hot water with higher temperature flows through a pore plate which is horizontally arranged in the heat storage container and is positioned between the micropore water injection section of the hot water input pipe and the micropore water outlet section of the hot water output pipe, and the hot water with higher temperature is kept to flow through a plurality of through holes of the pore plate.
10. The heat storage method of a water heating apparatus according to claim 1, further comprising:
detecting the water temperature: the temperature of the higher temperature or lower temperature hot water flow is detected by a temperature sensing set arranged in the heat storage container.
11. The method of claim 10, wherein the temperature sensor further comprises a temperature sensor adjacent to the microporous outlet section of the hot water output tube.
12. The heat storage method of a water heating apparatus as claimed in claim 10 or 11, wherein the temperature sensing set further comprises a temperature sensor adjacent to the microporous water injection section of the hot water input pipe.
13. The heat storage method of a water heating apparatus as claimed in claim 6, further comprising:
detecting the water temperature: the temperature of the higher temperature or lower temperature hot water flow and the lower temperature hot water flow is detected by a temperature sensing set arranged in the heat storage container.
14. The heat storage method of a water heating apparatus as claimed in claim 13, wherein the temperature sensing set further comprises a temperature sensor adjacent to the microporous water discharge section of the return pipe.
15. The heat storage method of a water heating apparatus as claimed in claim 13 or 14, wherein the temperature sensing set further comprises a temperature sensor adjacent to the microporous water outlet section of the hot water output pipe.
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| CN201611115788.6A CN108168156B (en) | 2016-12-07 | 2016-12-07 | Heat storage method of water heating device |
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| CN201611115788.6A CN108168156B (en) | 2016-12-07 | 2016-12-07 | Heat storage method of water heating device |
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| CN108168156A CN108168156A (en) | 2018-06-15 |
| CN108168156B true CN108168156B (en) | 2020-07-31 |
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| CN109539374B (en) * | 2018-12-21 | 2023-10-03 | 北京中安金圣科技有限公司 | Solar energy-heat pump coupling heat supply system and operation method |
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| CN85104499A (en) * | 1985-06-12 | 1986-12-10 | 里姆澳州有限公司 | A kind of improved solar water heating system |
| AT414272B (en) * | 1999-07-07 | 2006-10-15 | Vaillant Gmbh | LAYERS MEMORY |
| CN2389331Y (en) * | 1999-09-03 | 2000-07-26 | 北京清华阳光太阳能设备有限责任公司 | Apparatus of water supply/drainage for layered water-heating container |
| CN201033015Y (en) * | 2007-01-04 | 2008-03-12 | 曾兆峰 | Cold and hot water demixed boiling water equipment |
| CN102878713A (en) * | 2012-11-14 | 2013-01-16 | 镇江七政新能源有限公司 | Heat storage water tank |
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